Modified Directional Wide Band Printed Monopole Antenna for Use in Radar and Microwave Imaging Applications

Golezani, Javad Jangi; Abbak, Mehmet; Akduman, İbrahim

doi:10.2528/pierl12052803

Cited by 24 publications

(31 citation statements)

References 5 publications

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“…The measured results show good agreement with equivalent circuit model and CST simulation. The radiation pattern, impedance bandwidth, directivity and flat gain characteristics of the antenna have also been compared with the earlier suggested similar research work [21][22][23][24][25][26][27][28][29][30][31][32][33]. The radiation patterns of the proposed antenna at different frequencies are shown in Fig.…”

Section: Resultsmentioning

confidence: 94%

“…The proposed design achieves 95% impedance bandwidth in UWB frequency range 4.10-11.5 GHz. The half power beam width (HPBW) moves between 49 • and 22 • degrees, and the gain improves between 1-2 dB in comparison to previously reported antennas [21][22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 76%

“…The 3-dB angular width or HPBW of the elliptical slotted circular patch antenna is 22 • at 9.3 GHz frequency whereas the simulated HPBW is 26 • for the antenna without elliptical slotted patch (with ground slot rotation at Θ = 45 • ). Therefore, the half power beam width (HPBW) increases to 34% compared to the earlier antenna designed in [21]. Thus, the designed antenna is appropriate for C-and X-bands as well as for radar imaging systems.…”

Section: Experimental and Parametric Analysismentioning

confidence: 86%

“…17. In Table 4, a comparative study of performance analysis of the designed antenna is given with recently suggested antennas [21,[29][30][31][32][33].…”

Section: Resultsmentioning

confidence: 99%

“…Various designs have recently been introduced which demonstrate wide impedance bandwidth, high flat gain and directional radiation patterns including the Horn or Vivaldi antennas [19,20]. The parabolic shaped ground plane acts as a reflector or L-shaped wideband monopole antennas have been demonstrated for see-through-wall, radar and microwave breast cancer imaging applications [21][22][23]. The optimization of the ground plane with CPW feed has already been reported with different shapes of antenna patch [24,25].…”

Section: Introductionmentioning

confidence: 99%

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DESIGN ANALYSIS AND MODELING OF DIRECTIONAL UWB ANTENNA WITH ELLIPTICAL SLOTTED GROUND STRUCTURE FOR APPLICATIONS IN C- & X-BANDS

Meena¹,

Kumar²,

Parmar³

et al. 2016

PIER C

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Abstract-A modified technique to design directional ultra-wideband (UWB) antenna with slotted ground structure approach on the ground plane has been presented for applications in C-and X-bands. Initially, elliptical slot is inserted into ground and thereafter, the axis of ellipse is rotated 45 degrees in direction of the substrate. Minor axis of the ellipse is optimized to locate it symmetrically around the circular patch in order to obtain the full C-and X-band operations and also to enhance directivity. Thereafter, for further improvement in the directivity as well as gain, an elliptical slot in circular patch has also been introduced. The impedance bandwidth approximates about 95% covering the frequency ranging from 4.18-11.50 GHz. The return losses (S 11 ) are −38 dB and −43 dB through simulation, which are −24 dB and −32 dB by measurement at 6.3 GHz, 9.3 GHz resonant frequencies, respectively. Simulated gain and half power beam width (HPBW) are 2.5-8.4 dB and 49-22 degrees in 4.18-11.50 GHz band, respectively. Gain and half power beam width (HPBW) of the proposed antenna improves by 1-2 dB and 5-10 degrees, respectively compared with previously designed antennas. Simulation of the antenna has been carried out on Computer Simulation Technology (CST) software on an FR-4 substrate having dielectric constant 4.3 of thickness 1.6 mm. The measured results show good agreement with equivalent circuit model and CST simulation.

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Section: Resultsmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 76%

Section: Experimental and Parametric Analysismentioning

confidence: 86%

“…17. In Table 4, a comparative study of performance analysis of the designed antenna is given with recently suggested antennas [21,[29][30][31][32][33].…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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DESIGN ANALYSIS AND MODELING OF DIRECTIONAL UWB ANTENNA WITH ELLIPTICAL SLOTTED GROUND STRUCTURE FOR APPLICATIONS IN C- & X-BANDS

Meena¹,

Kumar²,

Parmar³

et al. 2016

PIER C

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Design of high gain/directional ultra-wideband antenna for radar imaging systems

Meena

Kumar

2018

Int J RF Microw Comput Aided Eng

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A compact size of 40 × 40 mm2 ( λ0 × λ0) semi‐elliptical slotted ground structure (SESGS) directional ultra‐wideband (UWB) antenna is proposed for radar imaging applications. A vertical semi‐elliptical slot is inserted into ground and subsequently, an axis of semi‐ellipse is rotated diagonally (with 45°) in direction of the substrate. Axes of semi‐ellipse are optimized symmetrically around the circular patch to work antenna as a reflector. Furthermore, semi‐elliptical slot is rotated horizontally (with 90°) again to improve the impedance bandwidth. Proposed antenna achieves fractional bandwidth around 83% covering the UWB frequency range from 4.40 to 10.60 GHz (S11 < −10 dB) having 4.5/6/7/8/9.3/10.2 GHz resonant frequencies. Also, antenna is capable to send low‐distortion Gaussian pulses with fidelity factor more than 95% in time‐domain. Measured gain and half power beam width (HPBW) are 6.1‐9.1 dBi and 44°‐29° in 4.40‐10.60 GHz band, respectively, which show an improvement of 1‐3 dBi in gain and half power beam‐width is reduced by 5°‐10° when compared with previously designed antennas. Experimental results show good agreement with CST simulation.

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Design of pattern-reconfigurable circularly polarized unidirectional antenna based on quasi-radiator for ISM applications

Arthur

Ellis²,

Ahmed³

et al. 2022

Heliyon

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Modified Directional Wide Band Printed Monopole Antenna for Use in Radar and Microwave Imaging Applications

Cited by 24 publications

References 5 publications

DESIGN ANALYSIS AND MODELING OF DIRECTIONAL UWB ANTENNA WITH ELLIPTICAL SLOTTED GROUND STRUCTURE FOR APPLICATIONS IN C- & X-BANDS

DESIGN ANALYSIS AND MODELING OF DIRECTIONAL UWB ANTENNA WITH ELLIPTICAL SLOTTED GROUND STRUCTURE FOR APPLICATIONS IN C- & X-BANDS

Design of high gain/directional ultra-wideband antenna for radar imaging systems

Design of pattern-reconfigurable circularly polarized unidirectional antenna based on quasi-radiator for ISM applications

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